DE15765C - Cold generating apparatus for local anesthesia - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 30: Health Care.

Patented in the German Empire on April 17, 1881.

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For minor operations, especially the fingers and toes to achieve painlessness, has been strong cooling of the concerned Limbs proven to be effective. Until now, pieces of ice or cold mixtures were used for cooling made of ice and salt and metal plates that have cooled down in them for a long time, as well as the permanent one Dusting the parts with the Richardson ether spray. Meanwhile, ice is not everywhere, not in every season and not to be obtained in the required purity. It is also too fleeting to last for a long time Allow transportation or storage. The ether spray does not run on the one to be cooled Exclusively restricting parts of it requires disproportionate consumption of ether, fills the operating room with an annoying amount of ether vapor and is flammable. The ether spray is on the face and in the mouth because of the nuisance the eyes, otherwise not applicable to the lungs.

The apparatus shown in the drawing are based on the principle of evaporation temperature decrease resulting from certain liquids by means of well-conducting ones To transfer the walls of hollow vessels to the parts of the body to be cold, and accordingly these vessel walls are designed according to the various forms of use.

A. Freezing box for freezing parts of the skin surface in painful small operations.

In Fig. 1 is the view of an anesthetic apparatus , which consists essentially of the Aethergefäfs AB CD , of which Fig. 2 shows a vertical longitudinal section, Fig. 3 shows a vertical cross section and Fig. 4 shows a horizontal cross section. This vessel, made of highly conductive sheet metal and closed on all sides, is flat only in its front plates, whereas the upward-pointing back is convex, the two long sides are flat concave and the bottom has a strongly concave cross-section. In the interior of the same the two pipe systems AA ¹ and BB ^{1 are} joined, which, independently of each other, at A respectively. B step out of the front wall and, apart from that on the latter, respectively. ascending pipe legs, consist of three bifurcated tubes, which BEZW close above the ground. are led along under the back so that they meet the concave or to accommodate the convex shape of these vessel walls. At A ¹ A ¹ A ¹ resp. B ¹ B ¹ B ¹ , these horizontal tubes are closed, but over the entire length of their down or down. upwardly facing surface perforated like a sieve, so that a at A respectively. at B introduced air flow in fine jets against the ground respectively. blow out the back of the vessel. The pipe bends introduced at C and D through the opposite wall, whose short upward respectively. downwardly directed legs are also perforated like a sieve, serve both to discharge the air that has got into the interior through A and B, and to fill the container.

If the container ABCD is reinforced by means of rubber hoses, as shown in Fig. 1, namely at A with the known rubber

blower E together with air chamber F, at C with a funnel JET, while the two tube mouths B and D are set in communication by a third tube, in the middle of which the glass tube G is switched on, then the substance can pass through, with the blower temporarily removed the funnel H can be filled, whereby one is able to measure the required level height by holding the pipe G appropriately. With this type of armouring, the aim is to cool down the concave soil, in particular, because the air flow driven by the fan will emerge finely divided through the sieve openings of A ¹ A ¹ A ¹ and stimulate the ether to evaporate most strongly just above the floor. therefore mostly cool it down, while the air impregnated with ether vapor can escape through CH. In this form the device is used for operations on fingers, toes or nose, etc. If, on the other hand, it is to be used for operations on hollow parts of the body to which the back of the box fits better, then the fan with B, the funnel with D and the mouths of A and C are set in communication with each other, as are the flatly curved side walls of the Boxes can be used for colds on vertical parts of the body.

B. apparatus for cooling the teeth and the jaw, in order to make the teeth painless surgery (Zahnextractionen) to Fig. 5 to 7. The Erfrierungsgefäfs ABCD is designed in accordance with saddle-shaped for the purpose, so that the legs C of the outward jaw surface, the Leg D (slightly longer than C) conform to the inner surface of the jaw. The inlet pipe A forks in the interior of the box in such a way that a pipe arm C ¹ resp. D ^{1 is passed} along and closed at the end. The AVandung the tube arms ^C1 and £>'is perforated sieve-like over the whole length and in the half of the periphery, the driven-in at A liquid DAF partly downwards and partly upwards, but emits mainly against the inward Gefäfswandung and can escape through the drain pipe B at the top. A and B are connected by means of rubber hoses to the flushing apparatus, which is assembled in the manner of chemical washing bottles, Fig. 8 and 9, as follows: In each of the two bottles E and E ^{1, which} are half filled with ethereal liquid, two tubes are inserted with a sealing stopper, whose one e respectively. e ¹ above the bottom of the bottles, while f bezw. f ¹ open into the airspace of the same. The outer ends of the tubes e and e ⁱ are connected to tubes A and B of the frostbite saddle; on the other hand, the outer ends of / and f ^1, by virtue of the three-way cocks h and h ^1, can either communicate with the outwardly open exhaust pipe m or with the blower pipe η. When the cock // the Communication manufactures of f and η, whereas the tap h ¹ of f ^l and m and if by means of the already mentioned under A blower air after being driven η, so is the same their way through / into the air space of the Bottle E and drives the ethereal liquid through e and AC ¹ and AD ¹ into the freezing box and further through B and e * into bottle E \ while the air displaced in the latter has to escape into the open through f ¹ and m. If this circulation is continued by the fan until E is almost completely emptied and the bottom mouth of e is no longer blocked by liquid, then the fan air penetrates through e into the frostbite saddle, radiates through C ¹ and D ¹ and causes the vigorous evaporation of the ether, mainly on the inner wall of the saddle and the resulting removal of heat from the jaw that is in contact with the latter. Of course, during which the air that was active in the saddle passes through B from e ^x into the bottle E ¹ , the ethereal fluid bubbles through and can then escape ^{through 1} m.

Likewise, if the three-way cocks h and h ¹ are reversed, and e with B and e ¹ in communication with A , the ethereal fluid accumulated in E ^{1 is} driven back in the opposite direction through the saddle of the jaw to E and the heat extraction from the same can be continued if this should be necessary.

In order to pull down the heat-conducting property of the outward-facing wall of the saddle, is the same covered with a sheath of hard rubber to bezw the tongue. the cheek mucous membrane against the deprivation of heat to protect as much as possible.

The application of the saddle as such is not good for certain surgical cases be workable. Then two of the inner respectively. Freezing boxes adapted to the outer jaw wall brought into use, each of which is provided with inflow and outflow tubes and which are both under each other by hoses as well as to be connected to the flushing device.

C. Freezing apparatus for freezing parts of organs from which microscopic sections are to be prepared (microtomy). The freezing box AB used for this purpose is shown in FIGS. 10 to 12, of which FIG. 10 shows a side view, FIG. 11 shows a cross section and FIG. 12 shows the outline. The supply pipe A , which ends in the form of a shower, is inserted directly above the floor,

while the outflow pipe B , which is open at both ends, flows in and out under the ceiling. If this box is connected in the same way as described under B , "by hoses to the tubes e and e ^{1 of} the flushing apparatus and the blower is in action, then the organic tissue to be treated, after it is placed on the ceiling of the box or. has been glued, freeze as a result of the heat extraction and thereby made suitable for the finest cuts.

Claims (1)

Patent Claims:
i. The construction of the refrigeration apparatus described above and shown in various designs, consisting of the frostbite ABCD respectively. AB and the flushing device E £ \ The process of cooling living and dead organic tissues by treating them brings into prolonged contact with hollow vessels of highly conductive metal, within which vessels liquids are introduced or passed through, through their evaporation the walls of the vessel are cooled to below freezing point. For this purpose ι sheet of drawings.